Sprinkler



H. E. MENC?- SPRINKLER Oct, 6, 1936.

Filed Aug. 28, 1933 Patented Oct. 6, 1936 UNITED STATES SPRINKLER Harry E. Meng, Oak Park, 111., assignor to w. D.

Allen Manufacturing Company, Chicago, 111., a

corporation Application August-.728, 1933, Serial No.-687,026

4 Claims.

This invention relates to sprinklers and more particularly to lawn sprinklers of the type having a rotatable spray head.

The main objects of the invention are to provide a simplified'and exceptionally free operat-- ing rotary sprinkler structure, to provide means whereby the rotary element may be effectively locked against rotation; to provide locking means which will not be apt to get out of order; and in general, it is the object of this invention to provide an improved sprinkler of the type referred to.

Other objects and advantages of the invention will be understood by reference to the following specification and accompanying drawing wherein a lawn sprinkler embodying a selected form of the invention is illustrated.

In the drawing-- Fig. 1 is a vertical section through the center of the sprinkler, certain parts however being shown in elevation;

Fig. 2 is a fragmentary side elevation; and

Fig. 3 is a plan section on the line 3-3 of Fig; 1. V Y

Referring now to the drawing, the improved sprinkler therein disclosed embodies a base 5, which may be of any suitable construction, for example, cast iron The base is preferably of a type often referred to as the sled type, which may be conveniently dragged over a lawn without cutting in or otherwise injuring the lawn. The base is provided with an internally threaded hose coupling portion 6, a. passageway 1 and an internally threaded outlet 8 into which the lower end of a standpipe 9 is threaded.

The upper end of the standpipe has screwthreaded into it, as indicated at 10, a bearing member II. The bearing member II is provided with upper and lower bearing surfaces I2 and I3 respectively and it is provided with inside and outside downwardly facing shoulders I4 and I5 respectively. As clearly shown in Fig. 1, the member II is screw-threaded into the standpipe to such an extent that the shoulder I5 engages the upper end of the standpipe.

The rotatable sprinkler head herein illustrated consists of a central hollow member I6 having oppositely disposed side openings I1, I! from which tubular arms I8, I8 extend in opposite directions. The outer ends of the arms I8, I8 are provided with any suitable form of spray device I9. Of course, it will be understood that any form of spray device may be secured to the hol- 10w central member I6.

The central hollow member I6 is provided with upper and lower. openings and 2| respectively,

of which the lower opening is considerably smaller than the upper opening and of such size that .it rotatably fits the lower bearing surface I3 of the bearing member I I. The upper opening 20 5 is of such size that the bearing'member II may be inserted through the upper opening and positioned relative to the hollow member I 5, as illustrated. A cap member is seatedin this instance screwthreadedinto'the upper opening 10 20 in the member I6 and the said cap member is provided with a socket 23 which constitutes a bearing for receiving the upper bearing surface I2 of the. bearing member II. As clearly shown, the bearing member I I is apertured to. provide 15 a passageway for Water from the standpipe 9 to the sprinkler arms I8, I8.

It will be observed that the structure thus far described constitutes a complete and operative lawn sprinkler of a very simple construction. 20 Because of the'shonlder arrangement I5 for limiting screwing of the bearing member I I into the standpipe, freedom of rotation of the sprinkler head is assured; in other words, it is impossible to turn the member II into the standpipe sufii- 25 ciently to clamp the hollow member I6 against the end of the standpipe.

For some purposes, it is desirable to stop the rotation of the spray head and it has been found that more or less positively engaging stops, such as used in the prior art, are quite apt to become inoperative through springing of various parts or through careless forcing of rotation of the sprinkler head by hand when the locking means is engaged. In this instance, locking means is provided which is effective to hold the sprinkler stationary when desired but which will not be injured in the event that the spray head is manually rotated when the lock is in operative position.

The locking means referred to consists of a sleeve 24 disposed around the standpipe 9, the sleeve being somewhat shorter than the length of the space between the bottom of the central spray head member I6 and the surface on which the sleeve normally rests. A slide member 25 having an elongated slot 26 is seated on the top surface of the base 5, with the standpipe projecting through said slot. The outer end portion of the slide member is flat and permits the sleeve 24 to assume a position in which its outer end is out of engagement with the spray head member I6.

A hump or cam formation 21 is pressed in the slide member in such a position that in the event that the slide member is moved laterally, the

pin 28 extending upwardly from the base 5,;

through an elongated slot 29 in the slide mem ber. provided at the end of the slide member for facilitating its manipulation;

It will be seen that the described locking ture is of a type which might becalled a friction lock, in that it has no interlocking engagement with the rotatable part. The spray head may be forcibly turned when the sleeve is adjusted to locking-position without injuring the construction.

Changes in the described structure may be made without departing from the spirit of the invention, the scope of which should be determined by reference to the following claims, the same being construed as broadly as possible consistent with the state ofvthe art.

I claim: I

1. A device" of the class described comprising a base, a standpipe, a rotary member mounted on said standpipe, a sleeve surrounding said standpipe and vertically adjustable thereon into frictional engagement at its upper end with the rotary member, and means shiftable approximately radially transversely of the standpipe for adjusting said sleeve to said' rotary member engaging position. t

2. A device of the class described comprising a base, a standpipe, a rotary member mounted on said standpipe, means for limiting upward movement of said rotary member relative to the standpipe, a sleeve mounted on said standpipe for adjustment vertically thereof into engage-1 An upwardly projecting ear 30 may be ment at its upper end with said rotary member for holding the latter against rotation, a member having an elongated slot and seated on said base, said standpipe extending through said slot whereby said member is movable transversely of the standpipe, and cam means formed on said member for efiecting upward adjustment of the sleeve as an incident to transverse movement of saidv slotted member.

3. A device of the class described comprising a base, a standpipe, a rotary member mounted 'on said standpipe, means for limiting upward movement of said rotary member relative to the standpipe, a sleeve mounted on said standpipe for adjustment vertically thereof into engagement at its upper end with said rotary member for holding the latter against rotation, a member having an elongated slot and seated on said base,

rotation of said slotted member around said standpipe.

I 4; A sprinkler of the class described comprising a base,-a standpipe, a rotary member mounted on said standpipe, a hollow member having vertically aligned openings therein, the upper opening being larger than the lower opening, a bearing member having its upper portion disposed within said hollow member and its lower portion projecting through said lower opening and secured to said standpipe, said bearing being provided with upper and lower bearing surfaces and the lower opening of said hollow member rotatably fitting said lower bearing surface, and a cap member overlying said upper opening and provided with a socket constituting a bearing for rotatably receiving said upper bearing surface of said bearing member.

HARRY E. MENG. 

